Home / 126,589,369.21-189,882,987.13-98,946,538.21

Finding the Fourth Proportional to 126,589,369.21, 189,882,987.13 and 98,946,538.21

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Solution

The fourth proportional to 126,589,369.21, 189,882,987.13 and 98,946,538.21 is: 148,418,973.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,589,369.21 : 189,882,987.13 = 98,946,538.21 : x
  2. Step 2: Convert to fraction form
    126,589,369.21/189,882,987.13 = 98,946,538.21/x
  3. Step 3: Cross multiply
    126,589,369.21x = 189,882,987.13 × 98,946,538.21
  4. Step 4: Simplify right side
    126,589,369.21x = 18,788,264,241,848,520
  5. Step 5: Solve for x
    x = 18,788,264,241,848,520/126,589,369.21
  6. Step 6: Final answer
    x = 148,418,973.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.